ATE344439T1 - DISPLACEMENT AND TORQUE SENSOR - Google Patents

DISPLACEMENT AND TORQUE SENSOR

Info

Publication number
ATE344439T1
ATE344439T1 AT02718312T AT02718312T ATE344439T1 AT E344439 T1 ATE344439 T1 AT E344439T1 AT 02718312 T AT02718312 T AT 02718312T AT 02718312 T AT02718312 T AT 02718312T AT E344439 T1 ATE344439 T1 AT E344439T1
Authority
AT
Austria
Prior art keywords
array
modulating element
regions
modulating
displacement
Prior art date
Application number
AT02718312T
Other languages
German (de)
Inventor
Steven John Horton
Original Assignee
Trw Lucasvarity Electric Steer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trw Lucasvarity Electric Steer filed Critical Trw Lucasvarity Electric Steer
Application granted granted Critical
Publication of ATE344439T1 publication Critical patent/ATE344439T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/3473—Circular or rotary encoders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/12—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving photoelectric means

Abstract

An optical displacement senor includes a source of optical radiation, a two-dimensional array of radiation detectors, and at least one modulating element disposed between the source and detector. The modulating element has alternating first and second modulating regions circumfrentially spaced around a central axis thereof. The modulating element is displacement relative to the array of detectors so that the detector array forms a two-dimensional image of the first and second regions of the modulating element of array. A data processor is connected to the detector array and is adapted to indentify the orientation of at least two different radially extending edges of regions on the modulating element from the two-dimensional image and also to determine the position of the centre of the element from the determined orientation of the edges.
AT02718312T 2001-03-27 2002-03-27 DISPLACEMENT AND TORQUE SENSOR ATE344439T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0107605.8A GB0107605D0 (en) 2001-03-27 2001-03-27 An improved displacement and torque sensor

Publications (1)

Publication Number Publication Date
ATE344439T1 true ATE344439T1 (en) 2006-11-15

Family

ID=9911630

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02718312T ATE344439T1 (en) 2001-03-27 2002-03-27 DISPLACEMENT AND TORQUE SENSOR

Country Status (11)

Country Link
US (1) US6800843B2 (en)
EP (1) EP1373836B1 (en)
JP (1) JP2004522156A (en)
KR (1) KR20030094301A (en)
CN (1) CN1271391C (en)
AT (1) ATE344439T1 (en)
AU (1) AU2002249382B2 (en)
DE (1) DE60215785T2 (en)
ES (1) ES2274965T3 (en)
GB (1) GB0107605D0 (en)
WO (1) WO2002077574A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4111442B2 (en) * 2003-03-28 2008-07-02 ミネベア株式会社 Rotating body torque measuring device
DE10351560A1 (en) * 2003-11-03 2005-06-02 Metronic Ag pulse
JP3899086B2 (en) * 2004-05-11 2007-03-28 ミネベア株式会社 Rotating body torque measuring device
JP4035515B2 (en) * 2004-05-18 2008-01-23 ミネベア株式会社 Optical displacement sensor and external force detection device
JP4094594B2 (en) * 2004-08-25 2008-06-04 ミネベア株式会社 Rotating body torque measuring device
JP4938265B2 (en) * 2004-09-03 2012-05-23 ライカ ジオシステムズ アクチェンゲゼルシャフト Method and apparatus for accurately measuring rotation angle
FI118979B (en) * 2005-04-29 2008-05-30 Metso Automation Oy Procedure for measuring consistency, circuit breaker design and consistency meter
EP1949037A1 (en) * 2005-10-28 2008-07-30 Aimbridge Pty. Ltd. Optical potentiometer with temperature drift compensation
JP4955286B2 (en) * 2006-03-07 2012-06-20 ミネベア株式会社 External force detection device
US20100145579A1 (en) * 2008-12-10 2010-06-10 Honeywell International Inc. Method and system for onboard zero offset compensation for electric power assist steering torque sensor
KR101102189B1 (en) * 2009-01-12 2012-01-02 이진성 Soundproofing pannel with great sound absorption
KR200454298Y1 (en) * 2009-09-14 2011-06-27 주식회사 일강케이스판 the sound catch Polyester deck panels
US8218134B2 (en) * 2009-11-30 2012-07-10 Bi Technologies Corporation Rotation and differential angle optical sensor with non-transition pattern sampling
CN101858805B (en) * 2010-06-04 2011-11-02 重庆大学 Torque measuring method based on annular space array
CN101986118A (en) * 2010-06-12 2011-03-16 陈会良 Opto-coupling torque transducer
CN104024804B (en) * 2011-10-31 2016-10-12 日本精工株式会社 Optical scale, the manufacture method of optical scale and optical encoders, angle sensors
JP6677934B2 (en) * 2017-07-27 2020-04-08 株式会社安川電機 Torque sensors, actuators, robots
AT520901B1 (en) 2018-01-24 2019-11-15 Avl List Gmbh Measuring device and method for determining a force and / or a torque on a torque transmitting shaft
GB2590426A (en) * 2019-12-17 2021-06-30 Gyrometric Systems Ltd Monitoring of rotating shafts
US11885614B2 (en) 2020-12-07 2024-01-30 Osi Optoelectronics, Inc. Optical rotary sensor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111642B1 (en) * 1982-09-20 1993-07-28 Shimadzu Corporation Method and apparatus for measuring a displacement of one member relative to another
DE3942178A1 (en) * 1989-08-08 1991-02-21 Heidenhain Gmbh Dr Johannes LENGTH OR ANGLE MEASURING DEVICE
DE69317499T2 (en) * 1992-04-22 1998-07-09 Copal Co Ltd ABSOLUTE ENCODER
WO1996006330A1 (en) * 1994-08-25 1996-02-29 Lucas Industries Public Limited Company Displacement sensor and torque sensor
WO2001018492A1 (en) * 1999-09-03 2001-03-15 American Precision Industries Inc. Incremental optical encoder

Also Published As

Publication number Publication date
KR20030094301A (en) 2003-12-11
ES2274965T3 (en) 2007-06-01
US20040118999A1 (en) 2004-06-24
JP2004522156A (en) 2004-07-22
DE60215785D1 (en) 2006-12-14
GB0107605D0 (en) 2001-05-16
AU2002249382B2 (en) 2006-09-07
US6800843B2 (en) 2004-10-05
WO2002077574A1 (en) 2002-10-03
DE60215785T2 (en) 2007-09-06
CN1505750A (en) 2004-06-16
EP1373836A1 (en) 2004-01-02
CN1271391C (en) 2006-08-23
EP1373836B1 (en) 2006-11-02

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Legal Events

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